Carbureter.



No. 832,547. PATBNTED OCT. 2, 1906 W. H. HOOPER.V

GARBURETER. APPLICATION FILED 93.28.1905.

W/ rA/E'ssf's.-

v WILLIAM H. HOOPER, OF SAN FRANCISCO,

ernten.

CALIFORNIA..

CARBURETELQ.

.To all wit/jm it may concern:

Be it known that I, WILLIAM H. Hoornn,a

citizen of the United States, residing at San Francisco, -in the countyof San Francisco and State tain new and useful lmyn'ovements inCarbureters, of which the following is a specification.

A My 'invention relates to earburcters in which air is impregnated witha combustible substance, such as gasolene, in order to supply anexplosive mixture for operating gaa engines and for any other purposesfor which such a combustible mixture is adapted to be used.

Itrelates more articularly to means for insuring a thorough) andcomplete mixture of air and gasolene, to means for automaticallyregulating the supply of gasolene in proportion to the requiredconsumption of explosive gas, to means for causing the current of air tooperate the gasolene-supply valve, and to special improvements inconstruction and arrangement, all tendingY to the production of asimple, inexpensive, and efficient carburetingapparatus. l l

embodiment of my invention is fully hereinafter described and is'shownin the acvbottom and companying drawings, in which igure 1 is a sideelevation of the carbureter with 'the airinlet -valve casing and a meansfor coupling to an engine attached. Fig. 2 is an end elevation lookingtoward the coupling. Fig. 3 is a plan view of the carbureter with itscover, screens, and packing removed. F ig. 4 is a longitudinal section,

The carbureter proper is composed of a chamber 1, having, preferably, arounded a flat opentop, which is closed by the cover 2, securedA byscrews, as shown, or in any suitable manner. The chamber is formedatboth ends with projecting ears 3. To the' ears at one end is bolted thevalvechamber 4, having the air-inlet 5 and provided With the lift-valve10. The air-valve chamber communicates, of course, with the interior ofthe carbureter. The valve 10 is loose on the stem 6, its hub or sleeve 7being guided by such stem. On the stem and be tween the valve and thewall of the valvechamber is a coil-s ring 8, which tends to keep thevalve seate A screw 9 bears upon the end of the stem 6.

The side walls and bottom of the chamber spcincation of Letters Patent.Application filed April 28, 1905. Serial No. 257.887;

of California, have invented ccr- Patented Oct. 2, 1906.

1 are formed with a series of grooves 11, movable screens 12, made of.fine wire-gauze, and the spaces between these screens are packed withany suitable material, as shown at 13, which `will be easily permeatedbythe combustible iluid. I have found ordinary excelsioi' to be welladapted for use as such a packing. The series oli-screens extends sub-Astantially from the rear to the front ofthe chamber', and any number canbe employed, according to the size paratus.

The cover 2 1s formed with an upward eX- tension 14, which has anupwardly-tapering bore communicating with the interior of chamber l andwith an internally-threaded boss 15, to which the gasolenesupply ipe isto be connected. A tapered valve 16 1'i)ts the seat formed by thetapered bore and when lowered admits gasolene in a quantity regulated bytho extent of its movement. To the lowerI end of the valve 16 is looselyconnected parallel inchned a lever 17, pivoted at 18, and whose long armis forked or otherwise formed so as to embrace the valve-stem 6 justabove the sleeve of theA valve.

As the gasolene-inlet is directly above the lirst ofthe series ofscreens in the chamber 1,

in which are set the inclined reand capacity ofthe apsuch gasolene fallsupon the screen and, owing to the incline lof the latter, is somewhatobstructed as it Hows downwardly, so that itis compelled to penetratethe screen throughout its extent and .to penetrate the adjacent packinginstead of fa tom. As the screen lies directly across the incomingair-current and the gasolene is distributed over its surface andthroughout the packing andthe successive packings as the supplycontinues, the mixture of air and gasolcne is quickly and uniformlymade,with the an explosive or combustible gas or vapor.

At the forward end of the carbureter is bolted a plate 19 or twoassociated plates, with whic is formed or to which. is secured aninternallythreaded hollow coupling 20, adapted to be connected to theair-inlet of the engine. A deep slot or recess is formed within thispla-te, as indicated at 21 in Fig. 4. The plate has an opening whichcommunicates with the exit-opening at the' forward end of chamber 1.-Within the slot in the ling directly to the botl '95 most effectiveresults as to the production of plate` 19' is theaircontrolling gate 22,which v by the action ot the engine as `movement to the gasolene-valv-,

forms a part ot a sleeve 23, mounted on a pin 2li, secured in plate 19.The sleeve has a handle 25, and its motion and that of the gate arelimited by the projection 26, which strikes the coupling 2O at one limitof movement, and by an adiustable screw-stop 27, which meets the handleat the limit of the pposite movement. The interior of the coupling 2()instead of being completely round throughout has webs Z8 arr-angel nangular relation, so that the gate can be adjusted with great nicetyrelatively to the apex of the angle in case a very' small supply' of gasis required. f

In the operation of the carburetor and supposing it to be attached toan. engine the initial turns of the 'engine-shaft will cornniencedrawing in air. The suction raises the air-inlet valve, and its motioncauses the lever 17 to communicate a proportionate Y unseating the sameand admitting gasolen, which niingles with the air and toi-ins theexplosive mixture which is carried into the engine. The extent to whichand the frequency with which the valve will be unseated, and hence thequantity of gasolene supplied., depends upon the quantity and rate ot'the gas-supply required by the engine, higher speeds producing aproportionate increased supply et gasolene and lower speeds aproportionatelydiminished supply, and vari ations in the supply of gasto the engines are instantly i'esponded to by relative variations 'inthe gasol iene-supply, the gasolene-valve beingq entirely automatic inoperation and controlled it affects the supply of air.

l use the term gasolene l in this applica- L. tion as illustrative ofall liquids which can oe iised in mixture with air for `forming acombustible gas oi' vapor.

described andshown in the l do not limit myself to the specific detailsof construction and arrangement herein accompanying," drawings, as l.desire to avail. myself ci' all vmodiications and equivalents as fallproperly within the spirit of my invention.

l. In a carbureterya chamber having an lair-'inlet and a gasolene-inlet,a series of inclined screens in said chamber placed in line with theair-inlet, and a packing between adjacent screens.

2. ln a carburetor, a chamber having an air-inlet and a gasolene-inlet,and a series of inclined grooves', in combination with removable screensin said grooves.

3. In a carburetor, a chamber having an air-inlet, a series of screensinclined upwardly and forwardly within said chamber, and agasolene-inlet in the rear of and in proximity to the top of the [irstscreen of the series.

4. ln a carbureter having an air-inlet valve a series of screensinclined upwardly and forwardly within the carburetor, a gas-outlet, anda gasolene-inlet in proximity to the top of theI `first screen of theseries and a gasolenevalve connected to and controlled by the airinletvalve.

5. n a carbureter, a carburetiiig-chamber having an air-inlet and agas-outlet\and an air-inlet valve, a gasolene-valve chamber, a passagefrom said valve-chamber to the cai'- bureting-chainber behind thegas-outlet, inclined screens-below said passage, and a slidingl valve insaid chamber adapted to' be opened. by the admission of air.

6. In a carbureter, a carbureting-chainber, inclined. screens therein,means for causing air and gasolone to pass to and through said screens,and packings of excelsior between the screens of the series.

7. In a carbureter, a carbureting-chamber, inclined screens therein, anda gasolene-inlet behind and directly above the first of said screens. l

In testimony whereoi1 l have aflixed my signature, in presence of twowitnesses, this th day ol April, 1905.

WlLl'AM H. HOOPER.

Vvlitnesses:

L. W. SrinLY, )nLns'rE ANsELL.

